2002 S8 o2 sensor
Chaps,
looking to replace the pre cat o2 sensors as I don't think they have ever been done I think its these https://www.autodoc.co.uk/bosch/1149541 anyone confirm 100%? thanks |
Looks like that's a generic 4-wire sensor so you have to splice the connector.
This one is the correct part cross referenced by the original number (077906265J), and is the same price. |
cheers MK
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well they arrived and look like the correct part but looks like you need the arms of Mr tickle and the hands of a newborn to get to them.
Anyone any tips or links to a guide for this job ? |
Quote:
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Dropping the exhausts is probably the best solution, but it's a bit of a faf I would imagine.
If they're not generating codes, I'd be tempted to leave them. They are only used to check CAT efficiency and don't directly effect fueling in any way. The fronts are way more important. |
its the fronts we are talking about no?
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Sorry, my mistake! :o
The descriptions of the job made me think you were doing the rears! The fronts are quite doable. I did mine with an offset O2 socket from memory, with a couple of socket extensions. Definately fiddly, but I got to both from above. I think I only removed the engine cover and inlet pipe. I thought Bosch had stopped making the sensor with the correct plug, for a sensor with a generic plug and a new plug for the harness (seriously, Bosch?). Michaela would be replacing these quite often, so she should know. I ended up with NTK sensors on mine. |
Would be smart if I replace those aswell when i have my engine out of the car
It sucks that I need 4 of those |
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